Hartzell Engine Tech Alv-9610 Aircraft Alternator

+$200 Core Exchange Charge
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Part# 08-07442
MFR Model# ALV-9610


Lighter, Tougher, and Proven! Introducing the brand new ALV-9610. The ALV-9610 alternator is a
direct replacement for gear driven heavyweight alternators on the Continental 520 & 550 engines.

Weighing under 13 lbs., the ALV-9610 is up to 9 lbs. lighter than current heavyweight options.

The ALV-9610 is a field proven design that has been in use for over 5 years
with thousands of alternators operating on the world's top selling aircraft.
FAA/PMA Approved.

Service Bulletin
California Prop 65 Warning Symbol

WARNING: Cancer and Reproductive Harm -


28V-100A Gear Drive 2,400-10,000 rpm 12lb 12oz. Continental (fr.TCM)
646491, 649304,
ES-10024 28V-100A Gear Drive 2,400-10,000 rpm 12lb 12oz. Continental 656802
While the alternators listed are direct replacements for existing aircraft installations,
there is no guarantee Hartzell recommendations are absolute due to unforeseen variations,
modifications, and/or manufacturer changes to an aircraft/rotorcraft or engine over the years.


  • 28 Volt / 100 Amp Prestolite Style
  • Max Continuous Oper. Speed: 10000 rpm
  • Type Drive: Gear
  • Min. Speed for Regulation: 2400 rpm
  • Max. Operating Altitude: 35000 rpm
  • Weight: 12 lbs.
  • Rotation: Bi-Directional
  • Replaces TCM part numbers: 642056, 646491, 646842, 649304, as well as ALV-9510.


  • Up to 9.6 lbs. weight savings (per engine)
  • OEM Direct Replacement
  • More power at engine cruise
  • Built in noise cancellation
  • Rugged design for extreme conditions
  • More economical than overhauled units
  • 3 Year / 1000 hour Warranty (Whichever occurs first)



I bought two for a C310. They work so far, and they shared the load without us needing to adjust the regulators to make them parallel. The weight savings is nice. Contrary to the Q&A answer, mine included the gaskets.

Jesse K
April 19, 2023

Installed 2 on a C414A. Good easy installation. Having a pair makes it easy to parallel the voltage regulators.

Switlik A Verified Purchase


March 30, 2022

Worked perfectly

Morris E Verified Purchase


November 24, 2021

5 grand for a continental alternator, less than $1k for this one with a 3 year warranty. No brainer.

March 5, 2020

Durable clean alternator

Neville C
December 3, 2019


Please note, Aircraft Spruce's personnel are not certified aircraft mechanics and can only provide general support and ideas, which should not be relied upon or implemented in lieu of consulting an A&P or other qualified technician. Aircraft Spruce assumes no responsibility or liability for any issue or problem which may arise from any repair, modification or other work done from this knowledge base. Any product eligibility information provided here is based on general application guides and we recommend always referring to your specific aircraft parts manual, the parts manufacturer or consulting with a qualified mechanic.

Q: Hello. Is there a core price on this new unit?

Yes, even though this is new we still are required to include a core charge. The amount of the core will be automatically added as a line item when you add this unit to your shopping cart.

Q: Does this Hartzell ALV-9610 alternator come with an FAA form 8130-3?

This alternator includes a domestic (USA) 8130 form with each shipment. Export 8130-3 must be requested at time of order. Please check with your local aviation authority as in many cases the domestic (USA) 8130 will be sufficient.

Q: ALV9610. I am considering buying two from you but my cores would be a different Hartzell model. (Replacing my 50 amp alternators with your 100 amp alternators). Will you accept the 50 amp core? If so, what is the amount of the core charge? Thank you

The standard core charge is $425 as of 06/14/13. Some old Hartzell models are accepted as cores and others are not. We need to know the exact model number to get the core charge that will apply. Please call sales at 877-477-7823 and request they get the current core charge for your specific alternator.

Q: What is the recommended service life of the Hartzell ALV-9610 alternator or manufacturer TBO?

Per our tech: warranty is 2 years ---- engine TBO.

Q: With purchase of the ALV-9610 part # 08-07442. Does this come with a new thrust washer?

No, this does not come with a washer. Please purchase part # 653981 separately.

Q: What is the recommended voltage regulator for this alternator? Would a B&C LR3C-24 work okay? This is an experimental aircraft installation.

If experimental P/N# 07-01305 is recommended.

Q: Does a new mounting gasket come with the purchase of a new ALV-9610?

No it does not, the correct gasket is 08-11257.

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